Filip Otto, Viktoriia Propisnova, Hanna Urjasz, Konrad Lewandowski, Konrad Sarnowski, Edyta Szałek, Agnieszka Karbownik. "Development of a UPLC-MS/MS method and its application for the pharmacokinetic analysis of regorafenib in rats." Scientific Reports, 2026. doi:10.1038/s41598-026-38418-6